comparing electric motors

I've been shopping cross-referenced Â¾ hp blower motors and noticed that they vary in full-load current between 8.9 amps and 11.3 amps. They all are labeled for 1075 rpm and require 15/370 run capacitors. Is the difference in amps significant? Thanks.

ballvalve,
Thanks for the update and link to Grainger. The 8 amp motor at Grainger is a 5-speed; my system specs a 3-speed. HVAC forums advised me that 5-speed motors will work, including more efficient and expensive ECM motors, but questioned the actual savings and the practicality of spending significant money on an 18-year old system. After some hours on the web, my gut feeling was that the risks of my screwing up the wiring or speeds and the costs of professional service and ECM motors weren't justified. I will order the lowest draw, 3-speed PSC motor as you advise. The current motor will be my emergency standby so I don't get caught again in a big snowstorm without a motor. Thanks again.